Canada
The Dark is a unique ultramarathon held inside the Bellevue Underground Mine in Alberta, Canada. This loop race features a 500-meter course within a 250-meter mine shaft, with a cool, consistent temperature of 0° to 2°C year-round. Participants can choose to run for 6, 12, or 24 hours, aiming to complete as many laps as possible within their time limit.
The mine tunnel is about 4 meters wide, allowing comfortable running space. The event is limited to 100 solo runners and offers a warming station with food at the mine entrance. Proceeds support the historic Bellevue Underground Mine, and runners receive custom swag. Visit the organization's website for the most recent information.
Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
24 hr
24-Hour Race
12 hr
12-Hour Race
6 hr
6-Hour Race
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